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How to design the QoS flow classification and marking

Latest reply: Dec 25, 2018 02:47:28 1162 3 10 0 0

In the MAN network, if we use the diffServ model, we should to design the flow classification and marking it.

we can do the flow classification and marking as below:

QoS level

Marking number

Service type

Bandwidth (weight)

Packet loss mechanism



Voice, AAA packet


Queue traffic shaping

High Round Robin


IPTV service(live, multicast)



Middle Round Robin


IPTV service(unicast)



Low Round Robin


Internet service



l   The overall scheduling mode is 1 PQ queue + 3 WFQ queues.

l   The packet marked as 7 enters the strict priority queue, allocates 10% of the bandwidth of the physical link, and adopts the tail drop congestion avoidance mechanism;

l   The packet marked 5 enters the High Round Robin queue, assigns 70 weights, and the queue is not limited. The WRED mechanism is not used;

l   The packet marked 3 enters the Middle Round Robin queue, assigns 10 weights, the queue is not fast, does not adopt the WRED mechanism;

l   The packet marked 0 enters the low polling queue, assigns 10 weights, and the queue is not limited.

l   The WRED mechanism is not used.

  • x
  • convention:

Created Dec 20, 2018 02:59:37

Can you give a specific example?
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Created Dec 20, 2018 03:03:41

Does the QoS function require many CPU resource of the device, if so, is there a specification for how many QoS rules are supported for each model of equipment?
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  • x
  • convention:

Created Dec 25, 2018 02:47:28

QoS is a good current limiting mode
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  • x
  • convention:


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